Label Rows

Is it possible to set the rows to custom labels like the colomn headers? I don't want to have the 1,2,3,4,5.. etc as my fixed row labels - how can I do this?

Also - is it possible to have more than one fixed row label?

setRowTexts(["label1", "label2"...]);

or

setRowText(function(i){return lables[i]});

Only 1 fixed label is possible.